Crystallization and molecular mobility in renewable semicrystalline copolymers based on polycaprolactone and polyisosorbide

Abstract

A series of novel block copolymers based on two biodegradable polymers, poly(ε-caprolactone), PCL, and poly(isosorbide), PIS, with PIS fractions 5, 10, 25 wr%, are studied herein. The aim is to...

Segmental mobility in sustainable copolymers based on poly(lactic acid) blocks built onto poly(butylene succinate) in situ

“…Recently, we determined this relationship in a series of renewable copolymers based on PLA 58,65,68 as well as other esters. 57,69 Furthermore, we showed that, for block copolymers, the effects on crystallization related to polymer mobility could be more easily tuned but were stronger when compared with the same polymers in the form of blends. 70…”

“…56 Deep understanding and mapping of molecular dynamics are extremely useful for polymer-chain topology and interchain associations, which are connected with the performance (mechanical, thermal and electrical conduction, permeability) of materials. 21,35,57,58 The macroscopic performance depends on the crystallinity in a polymer. Among others, the mechanisms of crystallization (i.e., nucleation, chain entanglements, chain folding, spherulitic growth 19,59 ) are strongly connected with the structure and mobility of the polymer chain (length, fragility, diffusion).…”

“…Deep understanding and mapping of molecular dynamics are extremely useful for polymer-chain topology and interchain associations, which are connected with the performance (mechanical, thermal and electrical conduction, permeability) of materials. 21,35,57,58 The macroscopic performance depends on the crystallinity in a polymer. Among others, the mechanisms of crystallization ( i.e.…”